Thought this was a general thread didn't realize it was Beatles.
Buckethead has been around quite some time but he gained international exposure when he joined GNR to replace Slash.
Very prolific musician, he literally has 100's of cd's ,,, He couldn't take Axls style of 1 album per decade and didn't last too long but he gained alot of attention from that.
Also did a song for Guitar Hero video game, got alot of exposure from that as well.